Solar radiation flux distributions in cavity receivers

Technical Report · Wed Nov 28 04:00:00 EST 1979

OSTI ID:6172657

Hamilton, N I; Jarvinen, P O

Analyses of solar radiation flux distribution in cavity receivers for various cavity geometries are summarized. Simple analytical techniques to calculate the incident solar flux distribution inside the cavities are derived for several cavity shapes to provide a quick, but reasonably accurate analysis of temperature profiles along the walls and backs of cavities. Design strategies to couple a dome-capped ceramic receiver to a dish/Brayton or dish/Stirling engine are also discussed. A steady-state analysis of cavity receivers shows that direct heat-transfer concepts, where heat is drawn off directly to the load, are more efficient than indirect heat-transfer concepts, where heat is withdrawn from a cavity area that does not receive incident solar flux.

• Research Organization: Massachusetts Inst. of Tech., Lexington (USA). Lincoln Lab.
• DOE Contract Number: AC02-78ET21015
• OSTI ID: 6172657
• Report Number(s): DOE/ET/21015-9; ON: DE81029707
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140702* -- Solar Thermal Power Systems-- Central Receiver
CALCULATION METHODS
CAVITY RECEIVERS
CERAMICS
CONCENTRATING COLLECTORS
CONFIGURATION
CYLINDRICAL CONFIGURATION
DESIGN
DOMED STRUCTURES
ELLIPTICAL CONFIGURATION
ENERGY TRANSFER
EQUIPMENT
HEAT TRANSFER
MATHEMATICAL MODELS
MECHANICAL STRUCTURES
PARABOLIC COLLECTORS
PARABOLIC DISH COLLECTORS
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR FLUX
SOLAR RECEIVERS
SPHERICAL CONFIGURATION